The Flavono-ellagitannins or complex tannins are a class of
tannin
Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids.
The term ''tannin'' (from Anglo-Norman ''tanner ...
s formed from the complexation of an
ellagitannin
The ellagitannins are a diverse class of hydrolyzable tannins, a type of polyphenol formed primarily from the oxidative linkage of galloyl groups in 1,2,3,4,6-pentagalloyl glucose. Ellagitannins differ from gallotannins, in that their galloyl ...
with a flavonoid. Flavono-ellagitannins can be found in ''
Quercus mongolica var. grosseserrata''.
Examples
*
Acutissimin A
Acutissimin A is a flavono-ellagitannin, a type of tannin formed from the linking of a flavonoid with an ellagitannin.
In 2003, scientists at Institut Européen de Chimie et Biologie in Pessac, France found that when the oak tannin vescalagin in ...
*
Acutissimin B
*
Camelliatannin G
*
Epicutissimin A
*
Mongolicains
**
Mongolicain AMongolicain A at chemspider.com
/ref>
** Mongolicain B
References
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